CChessStats

NMBCU Open 2025 (A)

Open SwissStandard

28 players participated in this 6-round tournament, held from 23 May 2025 to 25 May 2025 in Gqeberha, South Africa. 2 titled players. Top 10 Elo average was 1765, and top seed was Jack Van Zyl-Rudd (🇿🇦 RSA, FM, 2218).

Jack Van Zyl-Rudd (🇿🇦 RSA, FM, 2218) won with 5.5/6, ahead of Neathan Peter (5.0) and Ismaeel Lagardien (4.5). Van Zyl-Rudd won solo starting round 5.

The biggest upset came in round 3: Othandwayo Gcwabe (1558) beat Tiaan Bouwer (1764), a +206-point gap.

Location
🇿🇦Gqeberha, South Africa
Dates
23 May 2025 → 25 May 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Top seed
🇿🇦FMJack Van Zyl-Rudd2218
Avg top 10
1,765
Participants
28
Titled players · 2
FM×1
CM×1
Federations · 1 represented
🇿🇦South Africa×25
Top 3

How it unfolded

Top 6 · 6 rounds

FM Jack Van Zyl-Rudd led from R5; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R5.

Co-leaders
9
6
2
3
1
1
1.534.56R1R2R3R4R5R6
R5–R6 · LEAD HELD

FM Jack Van Zyl-Rudd held the sole lead from R5 through R6 without losing it.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

FM Jack Van Zyl-Rudd drew with CM Neathan Peter (White).

WIN STREAKS · 2 top finishers

FM Jack Van Zyl-Rudd 3 wins (R1–R3)CM Neathan Peter 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1FMJack Van Zyl-Rudd*
½
1
2CMNeathan Peter
½
*
½
3Ismaeel Lagardien
½
*
½
4Vianco Freeman
0
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Van Zyl-Rudd, JackFM2218RSA+12N+10B+5N=2B+4N+9B5.520.022.520.002243+1.6
2Peter, NeathanCM1960RSA+13B+11N+16B=1N=3B+8N5.019.021.016.002037+22.4
3Lagardien, Ismaeel1807RSA+20N+24B=4N=5B=2N+7B4.518.519.512.751841+9.4
4Freeman, Vianco1670RSA+19N+26B=3B+7N1B+16N4.517.017.09.251870+24.8
5Muller, Kaden1661RSA+23B+21N1B=3N=6B+11N4.018.519.59.751898+30.0
6Booysen, Jait0RSAF+19B+26N=12B=5N+13N4.010.510.57.2515380.0
7CHIPUNZA, James1572RSA+15N+17B=10N4B+16B3N3.516.518.58.001660+22.4
8Mtshekexe, Usemhle1590RSA+22B16N+17N=9B+12N2B3.515.016.07.251580-7.2
9Gcwabe, Othandwayo1558RSA+28BF+23N=8N+13B1N3.512.512.55.251771+28.8
10Jaffray, Joseph1603RSAF1N=7B=11N+23B+17N3.016.017.06.251751+27.2
11Moller, Sarah1665RSA+14N2B=20N=10B+22N5B3.016.017.05.751468-30.0
12Swanepoel, Diego1444RSA1BF+24N=6N8B+14N2.517.518.55.501552+12.8
13Baloyi, Tumelo0RSA2N=14B+19N+20B9N6B2.516.518.04.2515310.0
14Mbelekane, Hloma0RSA11B=13N+15B24N+20N12B2.512.013.05.2513620.0
15Mangcotwya, Lihle0RSA7BF14N+27B=25N+22B2.57.57.51.25772-16.8
16Mathebe, Ababalwe1704RSAF+8B2N+21B7N4B2.018.018.05.001576-35.6
17Van Rensburg, Adriaan0RSAF7N8B+25N+21N10B2.012.012.02.0013600.0
18FIDE 143766950FF+27N22B19B+20N2.09.59.51.506500.0
19SIHEWULA, Achuma1450RSA4B6N13BF+18N=21B1.514.514.52.751366-8.8
20FREEMAN, Nicole0RSA3B+28N=11B13N14B18B1.514.514.51.5015430.0
21Mahomed, Ihsaan1448RSAF5B+22N16N17B=19N1.510.510.51.751332-16.8
22FIDE 53402444108NF21B+18N11B15N1.012.512.52.007550.0
23Bouwer, Tiaan1764RSA5NF9B+28N10NF1.010.510.50.00807-84.4
24Kapp, Jacinto1597RSAF3N12B+14BFF1.010.010.02.50826-37.2
25Bowkers, Delcine0RSAFFF17B=15BF0.55.55.51.2515150.0
26Hammond, Anees0RSAF4N6BFFF0.08.58.50.008700.0
27FIDE 5340244500FF18B15NFF0.06.56.50.007150.0
28Bothma, Liandri0RSA9N20BF23BFF0.06.06.00.008610.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets